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User: RockDoctor

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  1. Re:Years long... on NASA Picks Up Rainstorms On Titan · · Score: 1

    There was a study where they put a subject in an underground mine (they built him and underground house in there, or lair if you prefer)

    I know, personally, several participants in such experiments.

    and only let him have contact through a video link to an operator's booth above.

    They were carried out in the 1960s (when I was concentrating on potty training!) in various natural caverns in Northern England. Gaping Ghyll for one ; stump cross caverns for another. The "incarcerated person" was generally (always?) Geoff Workman. And he'd do it in his holidays.

    The operators would be relieved and assigned shifts in a random way so that the subject could not infer how long each operator was present nor how long their shifts were.

    There was (generally - equipment and techniques evolved over several experiments) no direct contact from surface to underground. Geoff would call to surface, and later be called back by a tape recorded answer ; the surface would call Geoff and later a reply tape would be played back down the phone line. Supplies would be left at point X at times that Geoff had indicated that he would be doing work in area Y. (I assume there was a similar effort to deal with shit too. I'll ask Geoff next time I see him.)

    After a few weeks/months of this, the subject began having 33-hour days and 11-hour nights.

    There was certainly a drift to longer days, but a drift to longer nights is more arguable. This may be a reaction to the stress of the situation.

    I wouldn't draw much from these experiments. More sophisticated experiments have been done. But less sophisticated experiments (I work 24x7 on-site cover) show that individual people are variable, and differently variable, and quite adaptable. Week-by-week sleep limits are probably more important than day-by-day limits. That's not to suggest that people can work 24*7=168 hours at a stretch, but that in 100 hours, you probably need to get at least 20 and 36 hours of sleep in reasonable-sized (4 hours at least) chunks.

    The Navy (various navies) got to that conclusion centuries ago.

  2. Re:Physicists on Was the Early Universe 2 Dimensional Spacetime? · · Score: 1

    If you want to meet the really whacky impractical "crazy-for-the-sake-of-crazy" folks, you have to go to the economics department.

    Oh, how time move on. That was the Philosophy Department's job when I was a student. And they were the acid-freaks too. Hash at the Maths department though.

  3. Re:Correct on Why Doesn't Every Website Use HTTPS? · · Score: 1

    The fact that it can muck up cheap-n-cheerful 'zillion sites on one host' arrangements unless everybody's TLS ducks are in a row probably counts as a fairly significant cost, as well. Especially on the low end.

    Izhveneite? Ehn Angleskii, perzholstiya!

    No, seriously, most of what you say sounds like it's probably sensible, but the TLA ("TLS") goes straight past me. And as someone who understands most of the comment, but isn't as techy as you, then a significant part of the submitter's intent may be lost.

    Foot-shot : I'll go RTFA now. Annoyingly, while commenting, I can't see the original submission. Oh well, easily fixed after I submit.

  4. Re:I know he has a lot to be upset about on The Hobbit Finally Starts Shooting · · Score: 1

    A hobbit with a 'tude? You know that's unheard of.

    Which was exactly Tolkein's point with the Last couple of chapters of LoTR.

    Damn, I've not read the book for too long, and I still haven't got the "Director's Cut" discs to refer to the film from. I can't even remember the appropriate chapter titles.

    Question - mostly to myself - Did JRRT write the last few chapters before or after the Socialist Revolution of 1945?

  5. Re:Deflectors to full? on NASA Wants Revolutionary Radiation Shielding Tech · · Score: 1

    Do you seriously believe that the activists and the politicians they control are going to allow NASA to put an actual full-scale nuclear reactor on a booster rocket?

    Well, put that bluntly, "No".

    But looking for different ways to reconceptualise the de-dermification of this particular specimin of Felis domestis ... I can well see various of NASA's sub-contractors and international partners putting elements of a full-scale reactor onto various different launch devices and sending them "up".

    Just to make that a bit less hand-wavey :

    • - A reception/ assembly robot ; it reliably sits in orbit and coordinates it's own docking with a variety of other transport systems from a variety of sources. All robots too, of course.
    • - Relatively heavy lifts for modules that contain the power-handling and control assemblies. Of course, these can be checked-out in orbit prior to assembly ; failure of one would not be a ball-buster.
    • - A surprisingly small number of heavy lifts for shielding. Naturally you want shielding between your crew and the glowing green goo. Then you add as much distance as you can afford (and with high-strength cables and no need for rigidity, that can be a lot of distance). Then the protoplasmic [("good"|"bad")&"life"] sludge will need it's own containment vessel, to stop it from boiling into the vacuum. The total weight of shielding is not as great as you'd expect.
    • - The fuel. The controversial bit. Don't launch the lot at once - that does have significant risk. Launch lots of small launches that only need to get to the assembly robot. You might even make them reusable (!). Hell, launch some of them from modified ICBMs from a high-altitude bomber. That'll go down well with the uncommitted tree-huggers : swords-into-ploughshares, and all that jazz.
    • - Don't forget the reaction mass. All the reasonably credible propulsion systems with a fiar thrust need reaction mass. I'd use the Mk-I robot spacecraft to go and snag a small comet, wrap it in reflective clingfilm (Mylar ; YMMV), and drop it in Lunar orbit before coming back to MEO and panting. Mission 2 might be to do the same autonomously and have a strained acronym mission-name like "HEELBOY!"
    • - Meanwhile, the orbiting robot assembly plant has been putting together the somewhat modified Mk-II system. Obviously the Mk-I would have had some "learning experiences". But Mk-II would have a lot more reaction mass available (brought to Lunar orbit by Mk-I ; possibly partly processed by Mk-Ia derivatives and dropped into the Earth-Moon Lagreange-I point, for easy collection), and could go to interesting places. Like taking a Mk-II assembly robot to Ceres orbit, with reaction mass to decelerate, deposit the payload, and return.

    One of these days I'm going to have to write my own space opera. But writing it as fiction would be such a depressing acceptance of the failure of Homo sapiens to survive ... that it doesn't appeal to me. (And no ; I don't think that Homo sapiens will get a second chance.)

    On a less depressing note ... some of those techonological elements may sound familiar.

  6. Re:Not Microsoft's Fault on Microsoft Continues Android Legal Assault · · Score: 1

    The only way that we could fix the problem is if we created a magical device that made everyone more intelligent.

    You'd drown in shit first. We'd all drown in shit first.
    People do not do shit jobs out of high-minded personal conviction to do the dirty jobs because someone has got to do it ; individual people do shit jobs because they as individual people haven't got the option of doing something less unpleasant for as much or more money.
    If you invent a magic ray that makes everyone in the world more intelligent next week ... then the week after the garbage won't be collected, the sewers will be backing up against blockages, and the dead will be going un-buried.
    To say that there would be profound upheavals would be an understatement.

    Be careful what you wish for ... you might just get it.

    BTW, I remember at least 2 short stories by SF-masters addressing this point. But I'll be damned if I can remember the names of either authors or stories. But they're good examples of what use fiction in general and SF in particular can do to illuminate complex problems.

  7. Re:no one will need more then 640W on A New Class of Nuclear Reactors · · Score: 1
    Ha, ha.

    But seriously, how much power do you actually use? Averaged over a day.

    Yes, the shower may run at 8kW, but you probably only run it for 10 minutes a day. You may have a 700W power supply in your desktop, but what's it's duty cycle? (I run on a laptop with a 90W power supply, and a NAS that has a 100W PSU with a 10W standby load)

    I can't remember when I had to put a fuse into any piece of electronics bigger than 3A ; 3A is the smallest fuse that you can get for a UK mains socket. (And of course, the fuse is there to protect the lead, not the device. And yes, I check fused devices to see if they have the nearly inevitable 13A fuse attached to a 3A cable. It's surprisingly hard to find packets of 3A fuses.)

    One of my friends is of the opinion that you can run a house off a 13A fuse, and most of that is capability for handling start-up currents. That would be 3+kW, and doesn't sound incredible. For the UK, that would imply around 4m of solar panels per household. Which doesn't sound particularly insane. Maybe a little low for winter in colder parts of the world, but not incredible at first glance.

  8. Re:don't use the youtube link, use the torrent on New Film 'Zenith' Now Available For Free BitTorrent Download · · Score: 1

    Watch it now on YouTube or wait for an overnight torrent download?

    Well I was debating whether to play this particular game, but you've decided me to torrent it and stream it for a few days.

    So, I go to the site, pick up the torrent (actually there are two, aren't there), let it download overnight. And when I get back from the office tomorrow and the wife is at the ballet, I'll sit down and watch.

    Oh, BTW, the wife has been looking forward to the ballet for a week now, and we've been looking forward to our holiday (next week) for several months.

    What is this concept that"If I can't have it RIGHT-now-THIS-very-MOMENT-bwaaah-BWAAAAHHH-bwaaa, then it can't be worth ever seeing.

    Kids today. Get off my lawn. Eee, when Ah were a lad ...

  9. Re:they don't want the footage of godzilla to get on Japan Reluctant To Disclose Drone Footage of Fukushima Plant · · Score: 1

    The only decent, unbiased coverage I've found is on MIT's web site. MIT NSE Nuclear Information Hub

    Depressing that you can't find any other decent and/ or unbiased coverage. Try this http://www.iaea.org/newscenter/news/tsunamiupdate01.html .

  10. Suicide-promotion group? on Apple's App Store Accepts 'Gay Cure' App · · Score: 1
    "Exodus International" - sounds to me like a suicide-support group, like ... what's their names, Swiss, apartments with quality barbiturate overdoses ... "Dignities", or something like that.

    (This is an attempt to make their heads explode ; sometimes ridicule is one of the more effective tools around against certain species of sub-humans, and this seems like such a case to me. If you can do better, feel free to chime in ; comedy isn't in my job specification.)

  11. I ReadTFA ... paper quality important? on Geologists Say California May Be Next · · Score: 1
    This Newsweek magazine ; I recall seeing it on various airport newstands and the like. So, on the basis of this "report", the remaining important question is "do they print it on good-quality paper?"

    It's important to know if the paper holds together (particularly when wet), or whether you fingers go through it? Does the ink run and leave difficult-to-explain stains? Are the staples easy to remove?

    All of these factors affect whether the paper is any better than Gideon's (as supplied by shitty hotels the world around) arse-wipe paper.

    If this is the normal standard of Newsweek journalism, this is the only further information I need to know about Newsweek.

    (For those wishing to know, I AM a geologist, and the article under discussion is crap. It doesn't even make it up to the level of not even not even [sic] being wrong.)

  12. Re:Sell it to the King of France on Oracle Could Reap $1 Million For Sun.com Domain · · Score: 1

    I'm wondering, are all the people ruining the jokes in this thread French?

    Probably not ; they're probably people from a culture that is generally proud of not needing to travel to meet foreign influences in different parts of the world (at least, not until they've been sanitised down to their own domestic standards).

    Possibly they're even people who have, in living memory, had a head of state who has never felt the need to get a passport to travel the world on his own behalf.

    Some such people seem to have been attempting to make jokes at the expense of the French, and falling flat on their faces by not having done their homework first.

    (FWIW, I thought "sun.com" had a reasonable likelihood of ending up at Sun Oil. But then I thought "if they still exist?" It seems that they do, but only in a downstream capacity. Which is a shame ; they had some interesting projects before they left the table.)

  13. A hopeful summary, but ... on Canadian Researchers Develop Permanent Anti-Fog Coating · · Score: 1
    ... if you read the researcher's actual work instead of the commentary from the media (and Press Office), you'll see a lot more 'ifs', 'buts' and 'maybes' :

    We report on a polymer-based anti-fog coating covalently grafted onto glass surfaces by means of a multistep process. Glass substrates were first activated by plasma functionalization

    [From the abstract to this researcher's recent work on anti-fog coatings at http://www.ncbi.nlm.nih.gov/pubmed/21381643%5D

    So, you're going to drag this plasma functionalization equipment around with you to stop your glasses fogging up? Or maybe not ; you're just going to have to take your glasses to the optical lab to have this "permanent" coating applied. Which doesn't sound so bad. Yet.

    The anti-fog coating was then created by the successive spin coating of (poly(ethylene-maleic anhydride) (PEMA) and poly(vinyl alcohol) (PVA) layers. PEMA acted as an interface by covalently reacting with both the glass surface amino functionalities and the PVA hydroxyl groups, while PVA added the necessary surface hydrophilicity to provide anti-fog properties.

    Uh huh ... yes ... one plastic to bond to the glass and to the other plastic ; the other plastic to provide a hydrophilic surface. (yes children, hydrophilic not hydrophobic ; this evidently works by constraining the water to form a uniform coating on the surface instead of forming irregular droplets. As a spectacle wearer with a chemist parent, I worked out this aspect of stopping my glasses fogging up long before I left home for university. It is fairly unavoidable.) The hydrophilic surface holds the water to it's surface instead of forming droplets that disrupt the rays of light more than the uniform surface of the glass does.

    Finally, following a 24 hour immersion in water, these PEMA/PVA coatings remained stable and preserved their anti-fog properties.

    So, if you put your coated glasses into water, the coating doesn't fall off. Which is a good start. And if you have to wipe dust off your glasses on a dry day? This is a very restricted meaning of "permanent".

    I do see that the researcher has an additional publication coming out imminently. bt that's what I can find at the moment. I'll carry on spitting on the lenses of my glasses and on my diving mask ; my microscope and camera optics will continue to get rinsed in alcohol, then have the grit and dust licked off them before another alcohol rinse (the tongue can detect grit far more easily than you can see. Seriously.) ; and I'll continue to breathe out of the side of my mouth while framing up a snowscape photograph, to avoid fogging the viewfinder lens.

    My hopes got raised for a few moments there.

  14. Re:Swimming goggles on Canadian Researchers Develop Permanent Anti-Fog Coating · · Score: 1

    Please, try the veal and tip your waitress.

    I'd rather try the waitress and tip the veal, if you don't mind.

  15. Re:Most boring planet? on MESSENGER Enters Orbit Around Mercury · · Score: 1
    That's what I'd flag as the most interesting characteristic of the planet too.

    Unless you want to think of Mercury as having had a normal sized core, but some process has removed around half of the mantle, or doubled the size of the iron core. Either process would be interesting.

  16. Re:Nothing but respect... on Heroism Is Part of a Nuclear Worker's Job · · Score: 1
    To be boring, it's not really the magnitude of an earthquake that an engineer designs against, it's the ground acceleration that follows an earthquake. A site could be designed to resist (say) 30 cycles in 5 minutes of +5m/s/s to -5m/s/s vertical ground accelerations, and a shaking table programmed to produce those accelerations for validating designs.

    Those accelerations might be the result of a 9.2 thrust quake within 30km, or a 9.0 lateral shear quake within 100km. The direction to epicentre AND the orientation of the fault matters a lot in the latter case, more so than for general earthquake ground motion considerations.

    Seismologists will, within uncertainties, be able to produce a probability distribution covering acceleration, shaking duration and shaking orientation for a site. It's then an engineering problem to design the structures on site to (probably) resist the (likely) ground motions from the (probable) earthquakes to be experienced in the (planned) lifetime of the structure. Obviously, a structure which has a planned 40 year life has a different expectation of ground motion to a structure on the same site with a 100 year working life.

    From the fact that the reactors buildings (and containment vessels) are still basically standing, this work was done properly. The design of ancillary systems appears to have been insufficiently paranoid though.

  17. Re:Nothing but respect... on Heroism Is Part of a Nuclear Worker's Job · · Score: 1
    The problem isn't the cost of building a passive cooling system ; the problem is re-building the existing reactors (and ancillary equipment) to use a passive cooling system instead of the existing active cooling system. For example, if you need to put a pipe for your new system with a flow area of a square metre, and the only place you've got to put it has a cross section of a half a square metre ...

    Of course, you could always demolish the entire plant and start again from scratch.

  18. Re:why is this unusual on WikiLeaks Cash-For-Votes Exposé Rocks Indian Government · · Score: 1

    he's [Assange has] set in motion events that are no longer in his control and can't really be stopped by any person or government.

    The statement is true, but the way it is constructed implies that you believe that Assange at some point claimed to be in control of the consequences of the leaks that he hosted.

    He didn't ever claim to have any such control, or even to believe that such control was possible or desirable. Unless you know of him making such claims.

  19. Re:Truth copies fiction on US Military Deploys Personal Gunshot Detectors · · Score: 1

    Heck, try Marathon, back in 1993.

    Elite did the same sort of thing back in ... when was it ... 1983?

  20. Re:25 billion for what? on Groupon Could Challenge Google's Record IPO · · Score: 1
    I have heard of "groupon", in a very vague way.

    They used to produce images and frames on my web browsing. Then I taught Adblock "groupon-content.net^" and I've not heard anything from them since.

    I doubt that my life is significantly worse for it.

    Sounds to me like Google has saved themselves G$6.

  21. Re:Just to be clear.... on Sex Offender Claims Police Entrapped Him With Animated Emoticons · · Score: 1

    If you have a sexually explicit conversation with a consenting adult who is pretending to be a child, that is illegal (because of your intent).

    Hmmm,

    Pepper your conversation with occasional comments indicating that you know the pretend-child to really be an adult who is getting sexual excitement from the pretence that the two of you, as consenting adults, are sharing.

    I don't know if it's been tried, but a good defence lawyer might be able to make it fly. I gather that the courts have traditionally experienced significant difficulties in establishing, beyond reasonable doubt, the actual thoughts going through ones head (as opposed to the actions that one takes).

  22. Re:Can you say "intervention" on Cruise Line Rolls Out 'All-You-Can-Drink' Packages · · Score: 1

    If you're drinking $50 worth of booze a day, I'd say you have a problem...

    And if I have a problem, and you are not me, not married to me, and not financially dependent on me ...

    You can see where this is leading, can't you?

    • ... just what gives you the right to dictate what I do with my life.
    • - That's exactly the sort of health-Nazi attitude that dictates that I'm not allowed to smoke in the smoking bar of my local pub any more (hint : the door to the bar has "Smoking Bar" written on it in BIG FUCKING LETTERS, FOR THE HARD-OF-READING ; if you don't want to smoke, fuck right off to the NON-smoking bar!).
    • - It's the sort of health-Nazi attitude that means that if I want to suck on a nice relaxing spliff after a hard month at work (24x7 cover and sleep when you can ; try it, you'll want me to roll up that spliff for you!), then I'm going to have to carry a bag of diabetic-horse urine strapped to my thigh for the next three trips to work.
    • - Fucking health-Nazis, take the Dundonian advice and awa' an bile yer heids the lorra yez!

    I'd also say that offering "unlimited alcohol" is unlawful in most states, for obvious reasons.

    What - on your boat you're going to get out of the bar, get into your car and go and drive over a granny? You're going to beat shit out of one of the waitresses and then ... run away into the night never to be seen again?

    If I choose to take my own path to my own destination, as long as that doesn't clash with someone else's path, that's my choice.

    I thought that America was the land of the free ; how on earth did you let the health-Nazis get the upper hand like this?

  23. where is the line ... ? on US Ed Dept Demanding Principals Censor More · · Score: 1

    When children are concerned, where is the line between protection and censorship?"

    The important line is the tear-off strip in the packaging of the box of condoms. Use that and you don't need to worry about shit like this.

  24. Re:Fukushima Accidend NOT an error, It is a CRIME on US Alarmed Over Japan's Nuclear Crisis · · Score: 1
    10m + tsunami were well known long before 2004. In fact , in Japan they were known millennia before 2004, with written records going back centuries before 2004.

    Someone did their statistics and got it wrong. Which is worrying. Genuinely worrying. But some reactions are irrational.

    For example, the German closure of their nuclear plants, if it is predicated on fear of a similar incident, would have to be looking back around 9000 years to the last time that they got hit by a 10m-ish tsunami. And even then, it only affected relatively small areas in the north of the country.

    However, since this is the dreaded monster "Newklear Powah" with it's sidekick "Ray Diashun", one can expect irrationality to rule.

    FYI : my wife was working as a farm labourer around 100km downwind of Chernobyl when it blew ; we live in about the most radioactive city in the UK ; and one of my colleagues won't be in work on Monday because he's flying to Japan to help his wife look for her missing son. Irrational fears are wonderful as a spectator sport, but much less fun if you have to rationally analyse your best choice of actions.

  25. That is one ugly slapper. on Snake Bites Model In Breast and Dies of Poisoning · · Score: 1
    Poor snake. It tries to improve humanity by eliminating something that horrible, and dies for it's efforts.

    Sad.